Flicker issue on horizontally scrolling text for broadcast.

I have a 1920x1080 29.97fps composition in AE. There is no video footage, only digital graphics. I imported a PNG file that has some text and it scrolls horizontally. The problem is that the text becomes almost impossible to read.

I changed the frame rate to 60p and the text is now readable.
I guess my real question is this:

This animation will be broadcasted. Is it a problem if I give them the file using a 60p frame rate? If not, how can I avoid this issue keep the file at 29.97fps?

I am fairly new in the industry, so I will greatly appreciate your help and patience.

This FAQ entry links to some good resources for preventing and dealing with judder from horizontal motion as well as twitter from vertical motion for interlaced output:https://forums.adobe.com/thread/878948